![Kuhnke FIO (V2) Manual Download Page 68](http://html.mh-extra.com/html/kuhnke/fio-v2/fio-v2_manual_2009572068.webp)
Kendrion Kuhnke Automation GmbH
Mix 02
68
11/25/2016
4.15.1.2 RS484-Port
Pin Signal
Explanation
1
DGND
Data ground potential (reference to TxD/RxD)
2
GND
Ground potential
3
RxD/TxD-P Data+
4
RxD/TxD-N
Data-
4.15.2 Status LEDs
4.15.2.1 LED "RN"
The LED labeled "Run" indicates the state of the EtherCAT-ASICs.
Initialization, no data exchange
Pre-operational, no data exchange
Safe operation, inputs readable
Operational, unrestricted data exchange
4.15.2.2 LED "IO"
The LED labeled "IO" indicates the state of the module's I/Os.
State
LED flash code
Explanation
Ok
Green, on
No error
Error
Red, flashlight
1x Shortcut
2x Undervoltage
Start, Defect
Red
Module is not initialised
4.15.2.3 LED "PW"
The LED labeled "Pwr" indicates the state of the I/O-supply of the module.
4.15.2.4 LEDs "Channel"
The channel-LEDs indicate the state of the associated In-/Output-Signals.
State
LED flash code
Explanation
On
Green, on
Input signal TRUE / Output switched on.
Off
Off
Input signal FALSE / Output switched off.
Figure 41: Molex Micro Fit 4- pole male